I just purchased and installed the LM Series Diffuser by Mode Carbon and couldn't be happier. It really compliments the rear of my E92, bringing out a more aggressive look. Sam at Mode Carbon was a pleasure to work with. Overall I would highly recommend this mod.

Delivery
The exhaust arrived quickly via FedEx and came well packaged and protected, fully mummy-wrapped. It took me 10 min. to carefully remove the packing! There was no damage in shipping.

Build Quality
This is a very very nice carbon fiber piece. The weave is consistent and the gloss finish look amazing. It is a solid piece and not flimsy at all.

Installation
The diffuser came with 3M tape affixed along the key edges. There are 4 tabs on the lower edge (bottom) of the diffuser that require holes to be drilled. Then, simply remove the 4 existing screws that secure the rear bumper/body panel under the car, remove the 3M tape edges and the diffuser slips right on over the body. Then replace the 4 bodywork screws underneath and you are done.

Aesthetic
I'm really enjoying the new look of the rear of my car. The diffuser compliments my carbon fiber roof perfectly and adds a more aggressive look to the rear. The diffuser also nicely frames my black chrome exhaust tips.